Task 1
In the near future after an apocalyptic nuclear disaster, a small group of good guys is in a bid to survive against the bad guys.
They have created a sensor-based alarm system which works as follows:
| sensor | condition | binary value |
|---|---|---|
| motion | nobody outside | 0 |
| somebody outside | 1 | |
| gas | oxygen level low | 0 |
| oxygen level fine | 1 | |
| pressure | escape vehicle not in correct place | 0 |
| escape vehicle in correct place | 1 |
A red light is automatically switched on in the secret bunker if both:
there is somebody outside or the escape vehicle is not in the correct place
and
the oxygen levels are low.
Task 1.1
Design this circuit using circuitverse. Save a screenshot of your solution. Make sure it is labeled Task 1.
hint: think carefully about that little word not.
Task 1.2
Create a truth table for your solution.
Task 1.3
Code a computer program to simulate this scenario. Make sure you validate the input(s).
Task 2
Hedgedogs are scientifically-produced animals.
Scientists experiment on what situations make a hedgedog bark.
They have created a sensor-based alarm system which works as follows:
- A temperature sensor's output is converted by an ADC, 0 meaning the temperature is below 0oC , 1 meaning the temperature is above 0oC.
- A light sensor's output is converted by an ADC, 0 meaning the light level is very low, 1 meaning the light level is reasonable.
- A pH sensor's output is converted by an ADC, 0 meaning the hedgedog's milk has an acidity of less than 5, 1 meaning it is greater than or equal to 5.
A hedgedog barks if either:
the temperature is below 0oC and the light level is very low.
or
the hedgedog's milk is very acidic and the temperature is below 0oC
Design this circuit using circuitverse. Save a screenshot of your solution. Make sure it is labeled Task 2.
Create the truth table for your circuit.
Task 3
A fitness company has designed a new health monitor based on a sensor system which works as follows.
- A temperature sensor's output is converted by an ADC, 0 meaning the athlete's temperature is average, 1 meaning the temperature is above average.
- A heart beat sensor's output is converted by an ADC, 0 meaning the athlete's heart beat is between 60 and 120 beats per minute, 1 meaning heart beat is more than 120 beats per minute.
- A pressure sensor's output is converted by an ADC, 1 meaning the athlete's blood pressure is normal, 0 meaning it is outside the normal range.
An alarm sounds if either:
the heart beat is more than 120 beats per minute and blood pressure is outside normal range or the heart beat is between 60 and 120 and the blood pressure is normal.
or
the athlete's temperature is above average.
Design this circuit using circuitverse. Save a screenshot of your solution. Make sure it is labeled Task 3.
Create the truth table for your circuit.